Define autorealease pool?
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Why is delegate weak in ios?
What is the use of controller object UIApplication?
How can we use NSOperation queue? what is the advantage of using it ?
Why do you generally create a weak reference when using self in a block?
Explain me does ios support multitasking?
Define encoding or serialization??
What is a memory leak?
Can my application have multiple models?
Explain how you can add frameworks in Xcode project?
What is called before viewdidload?
What is oops in ios?
What are the cpu architectures supported by ios devices?